<template>
	<view>
		<view class="goods-list">
			<view v-for="(goods,i) in goodsList" :key="i" @click="gotoDetail(goods)">
				<my-goods :goods="goods"></my-goods>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				// 请求参数对象
				queryObj:{
					query: '',
					cid: '',
					pagenum: 1, //默认第一页
					pagesize: 10,//默认每页10个数据
				},
				goodsList: [],
				total: 0,
				// 节流阀
				isloading: false
			}
		},
		onLoad(options) {
			// console.log(options)
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			this.getGoodsList()
		},
		onReachBottom() {
			 // 判断是否还有下一页数据
			if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
			
			if(this.isloading) return
			// 让页码值加1
			this.queryObj.pagenum += 1
			this.getGoodsList()
		},
		onPullDownRefresh() {
			// 重置关键数据
			  this.queryObj.pagenum = 1
			  this.total = 0
			  this.isloading = false
			  this.goodsList = []
		
			// 重新发起数据请求
			 this.getGoodsList(() => uni.stopPullDownRefresh())
		},
		methods: {
			// 获取商品数据的方法
		async getGoodsList(cb){
			// 打开节流阀
			this.isloading = true
			const { data: res} = await uni.$http.get('/api/public/goods/search',this.queryObj)
			// 关闭节流阀
			this.isloading = false
			  // 只要数据请求完毕，就立即按需调用 cb 回调函数
			cb && cb()
			if(res.code !== 200) return uni.$showMsg()
			this.goodsList = [...this.goodsList, ...res.data.records]	
			this.total = res.data.total
			},
			gotoDetail(goods){
				uni.navigateTo({
					url: '/subpkg/goods_detail/goods_detail?goods_id=' +goods.goodsId
				})
			}
		}
		
	}
</script>

<style lang="scss">

</style>
